Perhaps you should try some spelling variations:
"dung tnnhanhg code snippets" » "dung thang code snippets", "dung thanh code snippets", "dung tnnhanhg code slippers"
"phan _ code snippets" » "phan _ code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("phan _ code snippets") or ("dung tnnhanhg code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan _ code snippets") OR ("dung tnnhanhg code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan _ code snippets ) or ( dung tnnhanhg code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan _ code snippets") or ("dung tnnhanhg code snippets"))) or ("locating bug code snippets"))*.